ModelParticle3D QML Type
使用Qt Quick 3D 模型的粒子。更多
Import Statement: | import QtQuick3D.Particles3D |
Since: | Qt 6.2 |
Inherits: |
属性
- delegate : Component
- instanceTable : Instancing
详细说明
ModelParticle3D 是一种逻辑粒子元素,可从Qt Quick 3DModel 组件创建粒子。
属性文档
delegate : Component |
委托提供了一个模板,用于定义粒子实例化的每个对象。
例如,分配 200 个红色立方体粒子:
Component { id: particleComponent Model { source: "#Cube" scale: Qt.vector3d(0.2, 0.2, 0.2) materials: DefaultMaterial { } } } ModelParticle3D { id: particleRed delegate: particleComponent maxAmount: 200 color: "#ff0000" }
instanceTable : Instancing |
instanceTable(实例表)提供了对模型粒子的Instancing 表的访问。ModelParticle3D 使用内部实例表来实现高效渲染。该表可应用于不属于粒子系统的模型的instancing 属性。
也可以使用此功能提供一个实例表,而不显示任何粒子。具体做法是省略delegate 属性。例如
ParticleSystem3D { id: psystem ModelParticle3D { id: particleRed maxAmount: 200 color: "#ff0000" colorVariation: Qt.vector4d(0.5,0.5,0.5,0.5) } ParticleEmitter3D { particle: particleRed velocity: VectorDirection3D { direction: Qt.vector3d(-20, 200, 0) directionVariation: Qt.vector3d(20, 20, 20) } particleScale: 0.2 emitRate: 20 lifeSpan: 2000 } } Model { source: "#Sphere" instancing: particleRed.instanceTable materials: PrincipledMaterial { baseColor: "yellow" } }
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